A seller has withdrawn from a project midway though execution and another seller is taking over . The project manager meets with the replacement seller and his crew . In this meeting, what should the project manager do FIRST ？

你们团队设计了一个材料清单来定义项目的工作构成，而没有采用你推荐的工作分析结构（WBS）。一个客户注意到这个清单中没有涵盖项目范围变更的需求，后来这一变更需求被补充了进去。这是一个由下列哪项引起的变更要求的具体事例？（）

风险识别的内容有()。

Maintenance and on-going operations are crucially important to projects and should:

You are managing a two-year project involving staff from several departments . The project is on schedule and within budget . A key team member leaves for a four-week vacation without completing a highly technical and specialized task assigned to him (tas